140 entries under dull topic. ×

59
dim(verb, adjective, quiet, cover)
50
dark(adjective, secret, hidden, mysterious, unclear)
47
unclear(adjective, clear, hard, weak)
43
vague(adjective, clear, weak, rough)
32
hazy(adjective, clear, weak, soft)
30
shadowy(adjective, clear, weak, soft)
29
murky(adjective, light, soft, flat)
27
cloudy(adjective, clear, soft, flat)
27
indefinite(adjective, clear, rough, strange)
26
indistinct(adjective, quiet, clear, weak)
22
opaque(adjective, hard, soft, flat)
21
gloomy(adjective, flat, dark, dirty)
20
arcane(adjective, hard, difficult, solid)
20
dusky(adjective, light, soft, flat)
20
faint(adjective, quiet, clear, weak)
20
foggy(adjective, clear, rough, dark)
20
fuzzy(adjective, clear, flat, rough)
19
blurred(adjective, gloomy, unclear, cloudy)
19
clouded(adjective, dark, gloomy, uncertain)
17
misty(adjective, clear, dark, gloomy)
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APASmart Define. (2016). obscure thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms
ChicagoSmart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, obscure thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>.
MLASmart Define. "obscure thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms>